var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

const { expressjwt } = require("express-jwt")

var cors = require('cors')

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));


app.use(cors())
app.use(expressjwt({ secret: "k", algorithms: ["HS256"] })
  .unless({ path: ["/login", "/refresh", "/register", "/getCode", "/editpassword","/getChat"] }))

app.use('/', indexRouter);
app.use('/users', usersRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  if (err) {
    console.log(err, 'app.err')
    if (err.name == "UnauthorizedError") {
      res.status(401).send({
        code: 401,
        msg: "无效token",
      })
      return
    }
  } else {
    next(err)
  }
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
